Profilbild: zufälliger DiceBear-Avatar (Big Smile) pro Kunde

Der Server erzeugt das SVG lokal unter /api/avatar.svg (Seed = Kunden-ID),
es geht also keine Anfrage an dicebear.com. Die Initialen bleiben als
Fallback, bis das Bild geladen ist.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

package-lock.json

@@ -8,6 +8,8 @@
       "name": "webklar-kundenbereich",
       "version": "1.0.0",
       "dependencies": {
+        "@dicebear/big-smile": "^9.4.2",
+        "@dicebear/core": "^9.4.3",
         "cookie-parser": "^1.4.7",
         "dotenv": "^16.4.7",
         "express": "^4.21.2",
@@ -20,6 +22,36 @@
         "node": ">=18"
       }
     },
+    "node_modules/@dicebear/big-smile": {
+      "version": "9.4.2",
+      "resolved": "https://registry.npmjs.org/@dicebear/big-smile/-/big-smile-9.4.2.tgz",
+      "integrity": "sha512-hmT5i7rcPPhStjZyg28pbIhdTnnMBzK3RObI0vKCpY30EFrzaPkkdDL6Ck5fAFBdvDIW1EpOJkenyR0XPmhgbQ==",
+      "license": "(MIT AND CC-BY-4.0)",
+      "engines": {
+        "node": ">=18.0.0"
+      },
+      "peerDependencies": {
+        "@dicebear/core": "^9.0.0"
+      }
+    },
+    "node_modules/@dicebear/core": {
+      "version": "9.4.3",
+      "resolved": "https://registry.npmjs.org/@dicebear/core/-/core-9.4.3.tgz",
+      "integrity": "sha512-9ITrQI57k3p5hKuU8HZJ1d0kPdrmTKEJDOdlKQ8CpaChbtmnD1R+dtWmNz5IesYThXM8F64pJ0ZvJ2rsY8Hciw==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/json-schema": "^7.0.15"
+      },
+      "engines": {
+        "node": ">=18.0.0"
+      }
+    },
+    "node_modules/@types/json-schema": {
+      "version": "7.0.15",
+      "resolved": "https://registry.npmjs.org/@types/json-schema/-/json-schema-7.0.15.tgz",
+      "integrity": "sha512-5+fP8P8MFNC+AyZCDxrB2pkZFPGzqQWUzpSeuuVLvm8VMcorNYavBqoFcxK8bQz4Qsbn4oUEEem4wDLfcysGHA==",
+      "license": "MIT"
+    },
     "node_modules/accepts": {
       "version": "1.3.8",
       "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz",